During this year's E3, a lot of people waited in line to watch the Quake 4 demo that ended up being a live gameplay session conducted by some of Raven’s designers and programmers. After having a closer look to the game, and a brief chat with one of Activision reps, we bring you our preview of Quake 4, so you can know a bit more of what to expect when the game is released by the end of this year (not official yet).